M HAKKI ALMA KAHRAMANMARAS SUTCU IMAM UNIVERSITY DEPARTMENT OF FOREST INDUSTRY ENGINEERING K AHRAMAN MARAS TURKEY 1 COST Action FP1105 WoodCellNet workshop in San Sebastian Polytechnic School ID: 596876
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PREPARATION OF ACTIVATED CARBON FIBERS FROM PHENOLATED BIOMASS WASTES
M. HAKKI ALMAKAHRAMANMARAS SUTCU IMAM UNIVERSITY, DEPARTMENT OF FOREST INDUSTRY ENGINEERING KAHRAMANMARAS, TURKEY
1
COST Action
FP1105 WoodCellNet workshop in San SebastianPolytechnic School of San Sebastian, University of The Basque Country26-27 May 2015San Sebastian, SpainSlide2
Carbon
Fiber2
Activated carbon fibers (ACFs)have been greatly used in many areas such as adsorption and separation, catalyst support, electronic materials
due to superb features.ACFs have mainly been produced via carbonization of various fiber precursors, such as rayon, petroleum or coal based pitch, polyacrylonitrile (PAN) and commercial phenol formaldeyde resin etc. However, limited reserves of these resources, the costs of processing and raw material supply, yield, environmental issues etc. bring with a necessity to improve the production of ACFs that highly depends on chemical materials .Slide3
Therefore, to solve these problems, utilization of biomass resources became an important issue and many techniques are being developed currently in order to use biomass resources effectively.
3Slide4
Solvolysis
LiquefactionBiomass is firstly converted bio-polyols by thermochemically via
solvolytic liquefaction, and then bio-polyols are used to produce useful green materials.
4Slide5
5
Microwave
Assisted
Conventional Glass Flask Pressure-proof Autoclave
Recently, wood is almost completely converted into useful liquid chemical raw by liquefaction technique in the phenol, which greatly improves the utilization of wood. Through liquefaction,
phenolated
(PW) biomass with high reactivity, has been widely used as chemical reagent for production of various materials
.Slide6
Conventional
Liquefaction Set-up
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Oil
BathHeaterCooling Apparatus
Mixer
Thermometer
Two
Necked
Glass
FlaskSlide7
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To expand the usage area of liquefied wood and obtain highly value added products, some scientists studied on carbon fibers and carbon fiber precursors from liquefied wood.
With exception of wood, some biomass-based ACFs were also produced from renewable sources, such as bamboo,
jute, cotton-stalk, etc. become popular as an alternative to petrochemical resources .On the other hand, in some of the studies, cellulose and lignin
have been used as precursors for ACF production. Slide8
ACF
Production from Liquefied Biomass8
Hexamethylenetetramine
Formaldehyde Slide9
9
L
iquefaction
160 ° C, 2.5 h (Phenol, H2SO4 or
HCl)Curing95 ° C, 4 hWashing with distilled water90 ° C, 2 hActivation800-1000 ° C40 min-2 hSlide10
Thank
You10